仿真分析铜闪速吹炼过程颗粒行为

Simulation Analysis of Particle Behavior in Copper Flash Blowing Process

在本次研究中通过展开对铜闪速吹炼过程中的颗粒行为构建仿真模型展开研究,模拟给定工艺条件下的颗粒运动行为,研究速度、轨迹、温度、氧化、存活时间及沉淀情况。研究发现精矿颗粒进入至反应塔内平均存留时间较短,并未偏离反应塔的中央,闪速熔炉内部颗粒温度,会受到颗粒直径影响,粒度大小及温度升降呈负相关,处于20μm颗粒会受到较大漩涡影响,容易随着烟气排出。

In this study,a simulation model of particle behavior during copper flashing is developed to simulate the particle motion behavior under given process conditions,and study the velocity,trajectory,temperature,oxidation,survival time and precipitation.Happening.The study found that the average residence time of the concentrate particles into the reaction tower is short,and does not deviate from the center of the reaction tower.The particle temperature inside the flash furnace will be affected by the particle diameter,and the particle size and temperature rise and fall are negatively correlated.At 20μm,the particles will be affected by the large vortex and will easily discharge with the smoke.